http://wiki.cabal.mx/index.php?action=history&feed=atom&title=Comandos_de_la_terminal%2Fdmesg Comandos de la terminal/dmesg - Historial de revisiones 2026-05-14T21:58:01Z Historial de revisiones para esta página en el wiki MediaWiki 1.32.1 http://wiki.cabal.mx/index.php?title=Comandos_de_la_terminal/dmesg&diff=5665&oldid=prev Rrc en 10:51 16 ago 2014 2014-08-16T10:51:08Z <p></p> <p><b>Página nueva</b></p><div>__NOTOC__<br /> * [[:#dmesg | dmesg]]<br /> <br /> == dmesg ==<br /> <br /> &lt;syntaxhighlight lang=&quot;bash&quot;&gt;<br /> <br /> [root@Pridd ~]# dmesg --help<br /> <br /> Usage:<br /> dmesg [options]<br /> <br /> Options:<br /> -C, --clear clear the kernel ring buffer<br /> -c, --read-clear read and clear all messages<br /> -D, --console-off disable printing messages to console<br /> -E, --console-on enable printing messages to console<br /> -F, --file &lt;file&gt; use the file instead of the kernel log buffer<br /> -f, --facility &lt;list&gt; restrict output to defined facilities<br /> -H, --human human readable output<br /> -k, --kernel display kernel messages<br /> -L, --color[=&lt;when&gt;] colorize messages (auto, always or never)<br /> -l, --level &lt;list&gt; restrict output to defined levels<br /> -n, --console-level &lt;level&gt; set level of messages printed to console<br /> -P, --nopager do not pipe output into a pager<br /> -r, --raw print the raw message buffer<br /> -S, --syslog force to use syslog(2) rather than /dev/kmsg<br /> -s, --buffer-size &lt;size&gt; buffer size to query the kernel ring buffer<br /> -u, --userspace display userspace messages<br /> -w, --follow wait for new messages<br /> -x, --decode decode facility and level to readable string<br /> -d, --show-delta show time delta between printed messages<br /> -e, --reltime show local time and time delta in readable format<br /> -T, --ctime show human readable timestamp<br /> -t, --notime don&#039;t print messages timestamp<br /> --time-format &lt;format&gt; show time stamp using format:<br /> [delta|reltime|ctime|notime|iso]<br /> Suspending/resume will make ctime and iso timestamps inaccurate.<br /> <br /> -h, --help display this help and exit<br /> -V, --version output version information and exit<br /> <br /> Supported log facilities:<br /> kern - kernel messages<br /> user - random user-level messages<br /> mail - mail system<br /> daemon - system daemons<br /> auth - security/authorization messages<br /> syslog - messages generated internally by syslogd<br /> lpr - line printer subsystem<br /> news - network news subsystem<br /> <br /> Supported log levels (priorities):<br /> emerg - system is unusable<br /> alert - action must be taken immediately<br /> crit - critical conditions<br /> err - error conditions<br /> warn - warning conditions<br /> notice - normal but significant condition<br /> info - informational<br /> debug - debug-level messages<br /> <br /> <br /> For more details see dmesg(1).<br /> <br /> [root@Pridd ~]# dmesg --version<br /> dmesg from util-linux 2.24<br /> <br /> [root@Pridd ~]# dmesg<br /> .<br /> .<br /> .<br /> [35060.001448] Adding 4087700k swap on /dev/sda2. Priority:100 extents:1 across:4087700k FS<br /> [35105.721309] Adding 499996k swap on /mnt/MiSwapfile. Priority:50 extents:1 across:499996k FS<br /> [35125.778044] Adding 2097148k swap on /mnt/swapfile. Priority:500 extents:6 across:2392060k FS<br /> [35657.983304] Adding 4087700k swap on /dev/sda2. Priority:-1 extents:1 across:4087700k FS<br /> [35687.522292] Adding 4087700k swap on /dev/sda2. Priority:100 extents:1 across:4087700k FS<br /> <br /> [root@Pridd ~]# dmesg --reltime<br /> .<br /> .<br /> .<br /> [Aug16 04:33] Adding 4087700k swap on /dev/sda2. Priority:100 extents:1 across:4087700k FS<br /> [Aug16 04:34] Adding 499996k swap on /mnt/MiSwapfile. Priority:50 extents:1 across:499996k FS<br /> [ +20.056735] Adding 2097148k swap on /mnt/swapfile. Priority:500 extents:6 across:2392060k FS<br /> [Aug16 04:43] Adding 4087700k swap on /dev/sda2. Priority:-1 extents:1 across:4087700k FS<br /> [Aug16 04:44] Adding 4087700k swap on /dev/sda2. Priority:100 extents:1 across:4087700k FS<br /> [Aug16 05:02] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6<br /> [ +0.010389] psmouse serio4: Touchpad at isa0060/serio4/input0 - driver resynced.<br /> <br /> [rrc@Pridd ~]$ dmesg -f lpr<br /> <br /> [rrc@Pridd ~]$ dmesg -f auth<br /> <br /> [rrc@Pridd ~]$ dmesg -f mail<br /> <br /> [rrc@Pridd ~]$ dmesg -f daemon<br /> [ 1.809026] dracut: dracut-034<br /> [ 1.891473] systemd-udevd[193]: starting version 208<br /> [ 2.836379] dracut: Starting plymouth daemon<br /> .<br /> .<br /> .<br /> [ 6.903736] systemd[1]: Starting Journal Service...<br /> [ 6.904368] systemd[1]: Started Journal Service.<br /> [ 6.973581] systemd-readahead[451]: Bumped block_nr parameter of 8:0 to 20480. This is a temporary hack and should be removed one day.<br /> [ 8.148602] systemd-udevd[512]: starting version 208<br /> [ 8.619331] systemd-udevd[521]: renamed network interface eth0 to enp3s0<br /> [ 8.712155] systemd-udevd[524]: renamed network interface wlan0 to wlp2s0<br /> <br /> [rrc@Pridd ~]$ dmesg -ef kern<br /> .<br /> .<br /> .<br /> [Aug16 05:12] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6<br /> [ +0.011434] psmouse serio4: Touchpad at isa0060/serio4/input0 - driver resynced.<br /> [Aug16 05:13] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6<br /> [ +0.011420] psmouse serio4: Touchpad at isa0060/serio4/input0 - driver resynced.<br /> [ +2.464155] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6<br /> [ +0.011457] psmouse serio4: Touchpad at isa0060/serio4/input0 - driver resynced.<br /> <br /> [rrc@Pridd ~]$ dmesg -ek<br /> <br /> [rrc@Pridd ~]$ dmesg -ef user<br /> <br /> [rrc@Pridd ~]$ dmesg -ef syslog<br /> [Aug15 18:49] systemd-journald[455]: Received request to flush runtime journal from PID 1<br /> <br /> [rrc@Pridd ~]$ dmesg -el emerg<br /> <br /> [rrc@Pridd ~]$ dmesg -el alert<br /> <br /> [rrc@Pridd ~]$ dmesg -el crit<br /> <br /> [rrc@Pridd ~]$ dmesg -el err<br /> [Aug16 03:54] sd 6:0:0:0: [sdb] No Caching mode page found<br /> [ +0.000004] sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> [ +0.003267] sd 6:0:0:0: [sdb] No Caching mode page found<br /> [ +0.000008] sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> [ +1.783254] sd 6:0:0:0: [sdb] No Caching mode page found<br /> [ +0.000008] sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> [Aug16 03:57] sd 6:0:0:0: [sdb] No Caching mode page found<br /> [ +0.000006] sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> <br /> [rrc@Pridd ~]$ dmesg -el warn<br /> .<br /> .<br /> .<br /> [Aug16 05:08] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6<br /> [Aug16 05:12] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6<br /> [Aug16 05:13] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6<br /> [ +2.475575] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6<br /> [Aug16 05:18] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6<br /> [Aug16 05:19] psmouse serio4: Touchpad at isa0060/serio4/input0 lost sync at byte 6<br /> <br /> [rrc@Pridd ~]$ dmesg -el notice<br /> .<br /> .<br /> .<br /> [Aug16 05:12] psmouse serio4: Touchpad at isa0060/serio4/input0 - driver resynced.<br /> [Aug16 05:13] psmouse serio4: Touchpad at isa0060/serio4/input0 - driver resynced.<br /> [ +2.475612] psmouse serio4: Touchpad at isa0060/serio4/input0 - driver resynced.<br /> [Aug16 05:18] psmouse serio4: Touchpad at isa0060/serio4/input0 - driver resynced.<br /> [Aug16 05:19] psmouse serio4: Touchpad at isa0060/serio4/input0 - driver resynced.<br /> [Aug16 05:22] psmouse serio4: Touchpad at isa0060/serio4/input0 - driver resynced.<br /> <br /> [rrc@Pridd ~]$ dmesg -el info<br /> .<br /> .<br /> .<br /> [Aug16 04:33] Adding 4087700k swap on /dev/sda2. Priority:100 extents:1 across:4087700k FS<br /> [Aug16 04:34] Adding 499996k swap on /mnt/MiSwapfile. Priority:50 extents:1 across:499996k FS<br /> [ +20.056735] Adding 2097148k swap on /mnt/swapfile. Priority:500 extents:6 across:2392060k FS<br /> [Aug16 04:43] Adding 4087700k swap on /dev/sda2. Priority:-1 extents:1 across:4087700k FS<br /> [Aug16 04:44] Adding 4087700k swap on /dev/sda2. Priority:100 extents:1 across:4087700k FS<br /> <br /> [rrc@Pridd ~]$ dmesg -el debug<br /> .<br /> .<br /> .<br /> [ +0.000002] PM: Looking for hibernation image.<br /> [ +0.002087] PM: Image not found (code -22)<br /> [ +0.000003] PM: Hibernation image not present or could not be loaded.<br /> [ +4.108699] snd_hda_intel 0000:00:1b.0: irq 43 for MSI/MSI-X<br /> [ +0.093792] ath: EEPROM regdomain: 0x60<br /> [ +0.000001] ath: EEPROM indicates we should expect a direct regpair map<br /> [ +0.000002] ath: Country alpha2 being used: 00<br /> [ +0.000001] ath: Regpair used: 0x60<br /> [ +0.003824] ieee80211 phy0: Selected rate control algorithm &#039;minstrel_ht&#039;<br /> [Aug15 18:50] atl1c 0000:03:00.0: irq 44 for MSI/MSI-X<br /> [Aug16 03:54] sd 6:0:0:0: [sdb] Mode Sense: 23 00 00 00<br /> <br /> [rrc@Pridd ~]$ dmesg -eHl debug<br /> <br /> [rrc@Pridd ~]$ dmesg -eL auto -l debug<br /> .<br /> .<br /> .<br /> [ +0.020073] PM: Basic memory bitmaps freed<br /> [ +0.002976] PM: Hibernation image partition 8:2 present<br /> [ +0.000002] PM: Looking for hibernation image.<br /> [ +0.002087] PM: Image not found (code -22)<br /> [ +0.000003] PM: Hibernation image not present or could not be loaded.<br /> [ +4.108699] snd_hda_intel 0000:00:1b.0: irq 43 for MSI/MSI-X<br /> [ +0.093792] ath: EEPROM regdomain: 0x60<br /> [ +0.000001] ath: EEPROM indicates we should expect a direct regpair map<br /> [ +0.000002] ath: Country alpha2 being used: 00<br /> [ +0.000001] ath: Regpair used: 0x60<br /> [ +0.003824] ieee80211 phy0: Selected rate control algorithm &#039;minstrel_ht&#039;<br /> [Aug15 18:50] atl1c 0000:03:00.0: irq 44 for MSI/MSI-X<br /> [Aug16 03:54] sd 6:0:0:0: [sdb] Mode Sense: 23 00 00 00<br /> <br /> [rrc@Pridd ~]$ dmesg -eL auto -u<br /> .<br /> .<br /> .<br /> [ +0.000632] systemd[1]: Started Journal Service.<br /> [ +0.069213] systemd-readahead[451]: Bumped block_nr parameter of 8:0 to 20480. This is a temporary hack and should be removed one day.<br /> [ +1.175021] systemd-udevd[512]: starting version 208<br /> [ +0.470729] systemd-udevd[521]: renamed network interface eth0 to enp3s0<br /> [ +0.092824] systemd-udevd[524]: renamed network interface wlan0 to wlp2s0<br /> [ +4.718958] systemd-journald[455]: Received request to flush runtime journal from PID 1<br /> <br /> <br /> [rrc@Pridd ~]$ dmesg -exHL auto -l err<br /> kern :err : [Aug16 03:54] sd 6:0:0:0: [sdb] No Caching mode page found<br /> kern :err : [ +0.000004] sd 6:0:0:0: [sdb] Assuming drive cache: write throu<br /> kern :err : [ +0.003267] sd 6:0:0:0: [sdb] No Caching mode page found<br /> kern :err : [ +0.000008] sd 6:0:0:0: [sdb] Assuming drive cache: write throu<br /> kern :err : [ +1.783254] sd 6:0:0:0: [sdb] No Caching mode page found<br /> kern :err : [ +0.000008] sd 6:0:0:0: [sdb] Assuming drive cache: write throu<br /> kern :err : [Aug16 03:57] sd 6:0:0:0: [sdb] No Caching mode page found<br /> kern :err : [ +0.000006] sd 6:0:0:0: [sdb] Assuming drive cache: write throu<br /> <br /> (END)<br /> <br /> [rrc@Pridd ~]$ dmesg -dexHL auto -l err<br /> kern :err : [&lt; 0.000000&gt;] sd 6:0:0:0: [sdb] No Caching mode page found<br /> kern :err : [&lt; 0.000004&gt;] sd 6:0:0:0: [sdb] Assuming drive cache: write th<br /> kern :err : [&lt; 0.003267&gt;] sd 6:0:0:0: [sdb] No Caching mode page found<br /> kern :err : [&lt; 0.000008&gt;] sd 6:0:0:0: [sdb] Assuming drive cache: write th<br /> kern :err : [&lt; 1.783254&gt;] sd 6:0:0:0: [sdb] No Caching mode page found<br /> kern :err : [&lt; 0.000008&gt;] sd 6:0:0:0: [sdb] Assuming drive cache: write th<br /> kern :err : [&lt; 174.202178&gt;] sd 6:0:0:0: [sdb] No Caching mode page found<br /> kern :err : [&lt; 0.000006&gt;] sd 6:0:0:0: [sdb] Assuming drive cache: write th<br /> <br /> (END)<br /> <br /> [rrc@Pridd ~]$ dmesg -Tl err<br /> [Sat Aug 16 03:54:31 2014] sd 6:0:0:0: [sdb] No Caching mode page found<br /> [Sat Aug 16 03:54:31 2014] sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> [Sat Aug 16 03:54:31 2014] sd 6:0:0:0: [sdb] No Caching mode page found<br /> [Sat Aug 16 03:54:31 2014] sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> [Sat Aug 16 03:54:33 2014] sd 6:0:0:0: [sdb] No Caching mode page found<br /> [Sat Aug 16 03:54:33 2014] sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> [Sat Aug 16 03:57:27 2014] sd 6:0:0:0: [sdb] No Caching mode page found<br /> [Sat Aug 16 03:57:27 2014] sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> <br /> [rrc@Pridd ~]$ dmesg -tl err<br /> sd 6:0:0:0: [sdb] No Caching mode page found<br /> sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> sd 6:0:0:0: [sdb] No Caching mode page found<br /> sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> sd 6:0:0:0: [sdb] No Caching mode page found<br /> sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> sd 6:0:0:0: [sdb] No Caching mode page found<br /> sd 6:0:0:0: [sdb] Assuming drive cache: write through<br /> <br /> [rrc@Pridd ~]$ dmesg -w<br /> <br /> [rrc@Pridd ~]$ dmesg -wdexL auto -l err<br /> <br /> &lt;/syntaxhighlight&gt;<br /> <br /> [[Category:Comandos de la terminal]]</div> Rrc